I don’t know if this is true, so someone more knowledgeable let me know…

I believe that there is a team of individuals who make/made glamours for the Korean/Chinese exclusive versions of the game and that some of those items spill over into our version. Can’t confirm, but maybe that would explain why there are somewhat regular Asian themed items?

There are a lot of nicer ethnic/cultural glamours available on Mogstation that are not Asian at all (like the Octoberfest-ish set), there certainly are a lot more various Asian-inspired ones.